The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 27, 1981
Filed:
Dec. 26, 1979
Applicant:
Inventor:
Charles J McDonald, Midland, MI (US);
Assignee:
The Dow Chemical Company, Midland, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L / ;
U.S. Cl.
CPC ...
260 / ; 260 / ; 526307 ; 564204 ;
Abstract
Water-immiscible, acid-soluble N-(aminomethyl)-.alpha.,.beta.-ethylenically unsaturated carboxamides such as N-(diethylaminomethyl)acrylamide are readily prepared by (1) reacting under acidic conditions a carboxamide such as acrylamide with a lower aldehyde such as formaldehyde and a moderately water-soluble secondary amine such as diethylamine and (2) recovering the resulting water-immiscible aminomethyl derivative of carboxamide from the acidic reaction mixture by adjusting the pH of the reaction mixture to a value of 7 or higher, whereby the water-immiscible derivative separates from the reaction mixture.